コード例 #1
0
gl::Error VertexDataManager::reserveSpaceForAttrib(const TranslatedAttribute &translatedAttrib,
                                                   GLsizei count,
                                                   GLsizei instances) const
{
    const gl::VertexAttribute &attrib = *translatedAttrib.attribute;
    gl::Buffer *buffer = attrib.buffer.get();
    BufferD3D *bufferImpl = buffer ? GetImplAs<BufferD3D>(buffer) : NULL;
    StaticVertexBufferInterface *staticBuffer =
        bufferImpl ? bufferImpl->getStaticVertexBuffer(attrib) : NULL;
    VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);

    if (!vertexBuffer->directStoragePossible(attrib, translatedAttrib.currentValueType))
    {
        if (staticBuffer)
        {
            if (staticBuffer->getBufferSize() == 0)
            {
                int totalCount =
                    ElementsInBuffer(attrib, static_cast<unsigned int>(bufferImpl->getSize()));
                gl::Error error = staticBuffer->reserveVertexSpace(attrib, totalCount, 0);
                if (error.isError())
                {
                    return error;
                }
            }
        }
        else
        {
            size_t totalCount = ComputeVertexAttributeElementCount(attrib, count, instances);
            ASSERT(!bufferImpl ||
                   ElementsInBuffer(attrib, static_cast<unsigned int>(bufferImpl->getSize())) >=
                       static_cast<int>(totalCount));

            gl::Error error = mStreamingBuffer->reserveVertexSpace(
                attrib, static_cast<GLsizei>(totalCount), instances);
            if (error.isError())
            {
                return error;
            }
        }
    }

    return gl::Error(GL_NO_ERROR);
}
コード例 #2
0
gl::Error VertexDataManager::reserveSpaceForAttrib(const gl::VertexAttribute &attrib,
                                                   const gl::VertexAttribCurrentValueData &currentValue,
                                                   GLsizei count,
                                                   GLsizei instances) const
{
    gl::Buffer *buffer = attrib.buffer.get();
    BufferD3D *bufferImpl = buffer ? BufferD3D::makeBufferD3D(buffer->getImplementation()) : NULL;
    StaticVertexBufferInterface *staticBuffer = bufferImpl ? bufferImpl->getStaticVertexBuffer() : NULL;
    VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);

    if (!vertexBuffer->directStoragePossible(attrib, currentValue))
    {
        if (staticBuffer)
        {
            if (staticBuffer->getBufferSize() == 0)
            {
                int totalCount = ElementsInBuffer(attrib, bufferImpl->getSize());
                gl::Error error = staticBuffer->reserveVertexSpace(attrib, totalCount, 0);
                if (error.isError())
                {
                    return error;
                }
            }
        }
        else
        {
            int totalCount = StreamingBufferElementCount(attrib, count, instances);
            ASSERT(!bufferImpl || ElementsInBuffer(attrib, bufferImpl->getSize()) >= totalCount);

            gl::Error error = mStreamingBuffer->reserveVertexSpace(attrib, totalCount, instances);
            if (error.isError())
            {
                return error;
            }
        }
    }

    return gl::Error(GL_NO_ERROR);
}
GLenum VertexDataManager::prepareVertexData(const gl::VertexAttribute attribs[], gl::ProgramBinary *programBinary, GLint start, GLsizei count, TranslatedAttribute *translated, GLsizei instances)
{
    if (!mStreamingBuffer)
    {
        return GL_OUT_OF_MEMORY;
    }

    for (int attributeIndex = 0; attributeIndex < gl::MAX_VERTEX_ATTRIBS; attributeIndex++)
    {
        translated[attributeIndex].active = (programBinary->getSemanticIndex(attributeIndex) != -1);
    }

    // Invalidate static buffers that don't contain matching attributes
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active && attribs[i].mArrayEnabled)
        {
            gl::Buffer *buffer = attribs[i].mBoundBuffer.get();
            StaticVertexBufferInterface *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;

            if (staticBuffer && staticBuffer->getBufferSize() > 0 && staticBuffer->lookupAttribute(attribs[i]) == -1 &&
                !directStoragePossible(staticBuffer, attribs[i]))
            {
                buffer->invalidateStaticData();
            }
        }
    }

    // Reserve the required space in the buffers
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active && attribs[i].mArrayEnabled)
        {
            gl::Buffer *buffer = attribs[i].mBoundBuffer.get();
            StaticVertexBufferInterface *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
            VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);

            if (!directStoragePossible(vertexBuffer, attribs[i]))
            {
                if (staticBuffer)
                {
                    if (staticBuffer->getBufferSize() == 0)
                    {
                        int totalCount = elementsInBuffer(attribs[i], buffer->size());
                        if (!staticBuffer->reserveVertexSpace(attribs[i], totalCount, 0))
                        {
                            return GL_OUT_OF_MEMORY;
                        }
                    }
                }
                else
                {
                    if (!mStreamingBuffer->reserveVertexSpace(attribs[i], count, instances))
                    {
                        return GL_OUT_OF_MEMORY;
                    }
                }
            }
        }
    }

    // Perform the vertex data translations
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active)
        {
            if (attribs[i].mArrayEnabled)
            {
                gl::Buffer *buffer = attribs[i].mBoundBuffer.get();

                if (!buffer && attribs[i].mPointer == NULL)
                {
                    // This is an application error that would normally result in a crash, but we catch it and return an error
                    ERR("An enabled vertex array has no buffer and no pointer.");
                    return GL_INVALID_OPERATION;
                }

                StaticVertexBufferInterface *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
                VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);

                BufferStorage *storage = buffer ? buffer->getStorage() : NULL;
                bool directStorage = directStoragePossible(vertexBuffer, attribs[i]);

                std::size_t streamOffset = -1;
                unsigned int outputElementSize = 0;

                if (directStorage)
                {
                    outputElementSize = attribs[i].stride();
                    streamOffset = attribs[i].mOffset + outputElementSize * start;
                    storage->markBufferUsage();
                }
                else if (staticBuffer)
                {
                    streamOffset = staticBuffer->lookupAttribute(attribs[i]);
                    outputElementSize = staticBuffer->getVertexBuffer()->getSpaceRequired(attribs[i], 1, 0);

                    if (streamOffset == -1)
                    {
                        // Convert the entire buffer
                        int totalCount = elementsInBuffer(attribs[i], storage->getSize());
                        int startIndex = attribs[i].mOffset / attribs[i].stride();

                        streamOffset = staticBuffer->storeVertexAttributes(attribs[i], -startIndex, totalCount, 0);
                    }

                    if (streamOffset != -1)
                    {
                        streamOffset += (attribs[i].mOffset / attribs[i].stride()) * outputElementSize;

                        if (instances == 0 || attribs[i].mDivisor == 0)
                        {
                            streamOffset += start * outputElementSize;
                        }
                    }
                }
                else
                {
                    outputElementSize = mStreamingBuffer->getVertexBuffer()->getSpaceRequired(attribs[i], 1, 0);
                    streamOffset = mStreamingBuffer->storeVertexAttributes(attribs[i], start, count, instances);
                }

                if (streamOffset == -1)
                {
                    return GL_OUT_OF_MEMORY;
                }

                translated[i].storage = directStorage ? storage : NULL;
                translated[i].vertexBuffer = vertexBuffer->getVertexBuffer();
                translated[i].serial = directStorage ? storage->getSerial() : vertexBuffer->getSerial();
                translated[i].divisor = attribs[i].mDivisor;

                translated[i].attribute = &attribs[i];
                translated[i].stride = outputElementSize;
                translated[i].offset = streamOffset;
            }
            else
            {
                if (!mCurrentValueBuffer[i])
                {
                    mCurrentValueBuffer[i] = new StreamingVertexBufferInterface(mRenderer, CONSTANT_VERTEX_BUFFER_SIZE);
                }

                StreamingVertexBufferInterface *buffer = mCurrentValueBuffer[i];

                if (mCurrentValue[i][0] != attribs[i].mCurrentValue[0] ||
                    mCurrentValue[i][1] != attribs[i].mCurrentValue[1] ||
                    mCurrentValue[i][2] != attribs[i].mCurrentValue[2] ||
                    mCurrentValue[i][3] != attribs[i].mCurrentValue[3])
                {
                    unsigned int requiredSpace = sizeof(float) * 4;
                    if (!buffer->reserveRawDataSpace(requiredSpace))
                    {
                        return GL_OUT_OF_MEMORY;
                    }
                    int streamOffset = buffer->storeRawData(attribs[i].mCurrentValue, requiredSpace);
                    if (streamOffset == -1)
                    {
                        return GL_OUT_OF_MEMORY;
                    }

                    mCurrentValueOffsets[i] = streamOffset;
                }

                translated[i].storage = NULL;
                translated[i].vertexBuffer = mCurrentValueBuffer[i]->getVertexBuffer();
                translated[i].serial = mCurrentValueBuffer[i]->getSerial();
                translated[i].divisor = 0;

                translated[i].attribute = &attribs[i];
                translated[i].stride = 0;
                translated[i].offset = mCurrentValueOffsets[i];
            }
        }
    }

    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active && attribs[i].mArrayEnabled)
        {
            gl::Buffer *buffer = attribs[i].mBoundBuffer.get();

            if (buffer)
            {
                buffer->promoteStaticUsage(count * attribs[i].typeSize());
            }
        }
    }

    return GL_NO_ERROR;
}
コード例 #4
0
GLenum VertexDataManager::prepareVertexData(const gl::VertexAttribute attribs[], const gl::VertexAttribCurrentValueData currentValues[],
                                            gl::ProgramBinary *programBinary, GLint start, GLsizei count, TranslatedAttribute *translated, GLsizei instances)
{
    if (!mStreamingBuffer)
    {
        return GL_OUT_OF_MEMORY;
    }

    for (int attributeIndex = 0; attributeIndex < gl::MAX_VERTEX_ATTRIBS; attributeIndex++)
    {
        translated[attributeIndex].active = (programBinary->getSemanticIndex(attributeIndex) != -1);
    }

    // Invalidate static buffers that don't contain matching attributes
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active && attribs[i].mArrayEnabled)
        {
            gl::Buffer *buffer = attribs[i].mBoundBuffer.get();
            StaticVertexBufferInterface *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;

            if (staticBuffer && staticBuffer->getBufferSize() > 0 && !staticBuffer->lookupAttribute(attribs[i], NULL) &&
                !staticBuffer->directStoragePossible(attribs[i], currentValues[i]))
            {
                buffer->invalidateStaticData();
            }
        }
    }

    // Reserve the required space in the buffers
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active && attribs[i].mArrayEnabled)
        {
            gl::Buffer *buffer = attribs[i].mBoundBuffer.get();
            StaticVertexBufferInterface *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
            VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);

            if (!vertexBuffer->directStoragePossible(attribs[i], currentValues[i]))
            {
                if (staticBuffer)
                {
                    if (staticBuffer->getBufferSize() == 0)
                    {
                        int totalCount = ElementsInBuffer(attribs[i], buffer->size());
                        if (!staticBuffer->reserveVertexSpace(attribs[i], totalCount, 0))
                        {
                            return GL_OUT_OF_MEMORY;
                        }
                    }
                }
                else
                {
                    int totalCount = StreamingBufferElementCount(attribs[i], count, instances);

                    // [OpenGL ES 3.0.2] section 2.9.4 page 40:
                    // We can return INVALID_OPERATION if our vertex attribute does not have enough backing data.
                    if (buffer && ElementsInBuffer(attribs[i], buffer->size()) < totalCount)
                    {
                        return GL_INVALID_OPERATION;
                    }

                    if (!mStreamingBuffer->reserveVertexSpace(attribs[i], totalCount, instances))
                    {
                        return GL_OUT_OF_MEMORY;
                    }
                }
            }
        }
    }

    // Perform the vertex data translations
    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active)
        {
            if (attribs[i].mArrayEnabled)
            {
                gl::Buffer *buffer = attribs[i].mBoundBuffer.get();

                if (!buffer && attribs[i].mPointer == NULL)
                {
                    // This is an application error that would normally result in a crash, but we catch it and return an error
                    ERR("An enabled vertex array has no buffer and no pointer.");
                    return GL_INVALID_OPERATION;
                }

                StaticVertexBufferInterface *staticBuffer = buffer ? buffer->getStaticVertexBuffer() : NULL;
                VertexBufferInterface *vertexBuffer = staticBuffer ? staticBuffer : static_cast<VertexBufferInterface*>(mStreamingBuffer);

                BufferStorage *storage = buffer ? buffer->getStorage() : NULL;
                bool directStorage = vertexBuffer->directStoragePossible(attribs[i], currentValues[i]);

                unsigned int streamOffset = 0;
                unsigned int outputElementSize = 0;

                if (directStorage)
                {
                    outputElementSize = attribs[i].stride();
                    streamOffset = attribs[i].mOffset + outputElementSize * start;
                }
                else if (staticBuffer)
                {
                    if (!staticBuffer->getVertexBuffer()->getSpaceRequired(attribs[i], 1, 0, &outputElementSize))
                    {
                        return GL_OUT_OF_MEMORY;
                    }

                    if (!staticBuffer->lookupAttribute(attribs[i], &streamOffset))
                    {
                        // Convert the entire buffer
                        int totalCount = ElementsInBuffer(attribs[i], storage->getSize());
                        int startIndex = attribs[i].mOffset / attribs[i].stride();

                        if (!staticBuffer->storeVertexAttributes(attribs[i], currentValues[i], -startIndex, totalCount,
                                                                 0, &streamOffset))
                        {
                            return GL_OUT_OF_MEMORY;
                        }
                    }

                    unsigned int firstElementOffset = (attribs[i].mOffset / attribs[i].stride()) * outputElementSize;
                    unsigned int startOffset = (instances == 0 || attribs[i].mDivisor == 0) ? start * outputElementSize : 0;
                    if (streamOffset + firstElementOffset + startOffset < streamOffset)
                    {
                        return GL_OUT_OF_MEMORY;
                    }

                    streamOffset += firstElementOffset + startOffset;
                }
                else
                {
                    int totalCount = StreamingBufferElementCount(attribs[i], count, instances);
                    if (!mStreamingBuffer->getVertexBuffer()->getSpaceRequired(attribs[i], 1, 0, &outputElementSize) ||
                        !mStreamingBuffer->storeVertexAttributes(attribs[i], currentValues[i], start, totalCount, instances,
                                                                 &streamOffset))
                    {
                        return GL_OUT_OF_MEMORY;
                    }
                }

                translated[i].storage = directStorage ? storage : NULL;
                translated[i].vertexBuffer = vertexBuffer->getVertexBuffer();
                translated[i].serial = directStorage ? storage->getSerial() : vertexBuffer->getSerial();
                translated[i].divisor = attribs[i].mDivisor;

                translated[i].attribute = &attribs[i];
                translated[i].currentValueType = currentValues[i].Type;
                translated[i].stride = outputElementSize;
                translated[i].offset = streamOffset;
            }
            else
            {
                if (!mCurrentValueBuffer[i])
                {
                    mCurrentValueBuffer[i] = new StreamingVertexBufferInterface(mRenderer, CONSTANT_VERTEX_BUFFER_SIZE);
                }

                StreamingVertexBufferInterface *buffer = mCurrentValueBuffer[i];

                if (mCurrentValue[i] != currentValues[i])
                {
                    if (!buffer->reserveVertexSpace(attribs[i], 1, 0))
                    {
                        return GL_OUT_OF_MEMORY;
                    }

                    unsigned int streamOffset;
                    if (!buffer->storeVertexAttributes(attribs[i], currentValues[i], 0, 1, 0, &streamOffset))
                    {
                        return GL_OUT_OF_MEMORY;
                    }

                    mCurrentValue[i] = currentValues[i];
                    mCurrentValueOffsets[i] = streamOffset;
                }

                translated[i].storage = NULL;
                translated[i].vertexBuffer = mCurrentValueBuffer[i]->getVertexBuffer();
                translated[i].serial = mCurrentValueBuffer[i]->getSerial();
                translated[i].divisor = 0;

                translated[i].attribute = &attribs[i];
                translated[i].currentValueType = currentValues[i].Type;
                translated[i].stride = 0;
                translated[i].offset = mCurrentValueOffsets[i];
            }
        }
    }

    for (int i = 0; i < gl::MAX_VERTEX_ATTRIBS; i++)
    {
        if (translated[i].active && attribs[i].mArrayEnabled)
        {
            gl::Buffer *buffer = attribs[i].mBoundBuffer.get();

            if (buffer)
            {
                buffer->promoteStaticUsage(count * attribs[i].typeSize());
            }
        }
    }

    return GL_NO_ERROR;
}